cstring='rgbcmyk';
figure;
clc
for i = 0:25
    fname = ['soundfile-wav/left_',num2str(i),'.wav'];
    subplot(2,1,1);
    hold on;
    plot(encode(fname), cstring(mod(i,7)+1));
    
   % subplot(4,1,2);
   % hold on;
   % plot((wavread(fname)), cstring(mod(i,7)+1));
      
   % fname2 = ['soundfile-wav/stop_',num2str(i),'.wav'];
   % subplot(2,1,2);
   % hold on;
   % plot(encode(fname2), cstring(mod(i,7)+1));
    
   % subplot(4,1,4);
   % hold on;
   % plot((wavread(fname2)), cstring(mod(i,7)+1));
end